29 The total surface area of a hemisphere of diameter 14 cm is ? / 14 सेमी व्यास वाले एक अर्धगोले का कुल पृष्ठीय क्षेत्रफल है ?
462 cm^2
1232 cm^2
1848 cm^2
308 cm^2
Answer / उत्तर - 462 cm^2
explanation / स्पष्टीकरण :-
The total surface area of a hemisphere = 3πr2 square units
= 3 x 22/7 x 7 x 7
= 3 x 22 x 7
= 462.
Indian Army Technical previous question paper - Danapur 1 Nov 2020
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